<!doctype html>
<html lang="zh-CN">

<head>
  <!-- 必须的 meta 标签 -->
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

  <!-- Bootstrap 的 CSS 文件 -->
  <link rel="stylesheet" href="../dist/css/bootstrap.min.css">

  <style>
.bs-example-layout .row>.col, .bs-example-layout .row>[class^="col-"] {
    padding-top: .75rem;
    padding-bottom: .75rem;
    background-color: rgba(86,61,124,0.15);
    border: 1px solid rgba(86,61,124,0.2);
}
.bs-example-layout .row+.row {
    margin-top: 1rem;
}
  </style>
  <title>响应式列布局-嵌套使用</title>
</head>

<body class="bs-example-layout">
  <div class="container">
    <div class="row">
      <div class="col-md-9">
        <div class="row">
          <div class="col-md-6">
            Top News
          </div>
          <div class="col-md-6">
            Top News
          </div>
        </div>
        <div class="row">
          <div class="col-md-4">
            Story
          </div>
          <div class="col-md-4">
            Story
          </div>
          <div class="col-md-4">
            Story
          </div>
        </div>
      </div>
      <div class="col-md-3">
        Side Bar
      </div>
    </div>
  </div>

  <script src="../dist/js/bootstrap.bundle.min.js"></script>

</body>
</html>